What's a resonable upgrade from a radeon 7570 for starcraft 2 legacy of the void?

[Naer]

my setup is an i7 cpu 8gb ram, ssd

 

[ultima_trev]

I personally wouldn't buy anything less than a GTX 750 or R7 360/260 for even an HTPC. They're not too much slower than my old HD 7850 and it handled SC II more than adequately.